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Finding the Fourth Proportional to 495,004.40, 742,117.80 and 273,388.40

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Solution

The fourth proportional to 495,004.40, 742,117.80 and 273,388.40 is: 409,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,004.40 : 742,117.80 = 273,388.40 : x
  2. Step 2: Convert to fraction form
    495,004.40/742,117.80 = 273,388.40/x
  3. Step 3: Cross multiply
    495,004.40x = 742,117.80 × 273,388.40
  4. Step 4: Simplify right side
    495,004.40x = 202,886,397,953.52
  5. Step 5: Solve for x
    x = 202,886,397,953.52/495,004.40
  6. Step 6: Final answer
    x = 409,867.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.